The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2005
Filed:
Aug. 16, 2002
Patrick Mattes, Stuttgart, DE;
Hans Brekle, Erdmannhausen, DE;
Patrick Mattes, Stuttgart, DE;
Hans Brekle, Erdmannhausen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A valve for controlling fluids, in particular in an injection valve of an internal combustion engine, including a valve housing (), in which housing a system region () is embodied, in which region a piezoelectric actuator module () and a hydraulic coupler module () are disposed, which has both an adjusting piston (), on which the actuator module () acts, and an actuating piston () that is operatively connected via a hydraulic chamber () to the adjusting piston () and that is connected to a valve closing member () cooperating with a valve seat (), and the adjusting piston () and the actuating piston () define the hydraulic chamber (), and a system pressure for refilling the hydraulic chamber () prevails in the system region (), from which a diversion conduit () branches off. The system region () is acted upon by a fluid via the diversion conduit ().